Doing a little experimenting, I figured out how you can set up private games using BaP, essentially making a EASHL game. So, if your team wants to challenge another team to a game, this is how you do it. Unfortunately, you can't do it ranked...but that would lead to easy stat padding, so it makes sense.

Directions* Organize a time for a game, with 1 person collecting all the Gamertags/PSN IDs for the game or have them already setup as friends* That person goes to ONLINE GAME MODES -> ONLINE TEAM PLAY -> CREATE SESSION* PRIVATE SESSION = YES* ONLINE TEAM PLAY CLUB RULES = YES* RANKED = NO (Yes won't let you invite anyone to the game)* Invite all the players to play* Wait for all players to join and select teams* Play with Be-A-Pros

It's a bit more complicated than if EA had allowed one EASHL team to challenge another, but it is usable for grudge matches and a league that will be forming for this site shortly.